不同时期路面照片对比.pdf

1、Photographic Comparison of Pavements Over TimeMARCH 4,2025Peter-Paul Dzwilewski,P.E.2Outline Background Asphalt-surfaced pavement subgroups Climatic distresses Structural distresses Other situations Concrete pavement subgroups Structural distresses Climatic distresses Material distresses Other situa

2、tions Note:Pavement age at first inspection increases within each subgroup3Canadian Department of National Defence(DND)DND is a stakeholder at twenty-five sites across Canada with varying:Facility types Typical aircraft and traffic patterns Climates Past construction history Maintenance practices AP

3、Tech has provided pavement management services for DND since 2012 First round of inspections in 2012 2013,2015 2017 Second round of inspections in 2019,2021 2023 Third round of inspections in 20244My Job Descriptions Pavement engineer Pavement inspector/surveyor Professional photographer?Pavement hi

4、storian?5Favorite Book in Dentist Waiting Room6Distress Duration Between Inspections First Inspection Photo Second Inspection PhotoConsider what changes are likely7Asphalt-Surfaced PavementCLIMATIC DISTRESSES8L&T Cracking 8 Years Later10/16/201311/4/20219L&T Cracking 6 Years and 5 Years Later9/19/20

5、138/15/20199/10/202410L&T Cracking 8 Years Later6/15/201310/1/202111L&T Cracking 8 Years Later6/11/201310/21/202112L&T Cracking 5 Years Later9/15/20199/12/202413L&T Cracking 6 Years Later08/15/201707/31/202314Asphalt-Surfaced PavementSTRUCTURAL DISTRESSES15Alligator Cracking 8 Years Later10/22/20130

6、9/09/202116Alligator Cracking 5 Years Later9/25/20199/12/202417Rutting and Alligator Cracking 8 Years Later6/12/201310/1/202118Asphalt-Surfaced PavementOTHER SITUATIONS19Shoving 9 Years Later7/26/201310/1/202220Reflective Cracking 5 Years Later7/13/20197/26/202421Swelling 9 Years Later7/26/201310/1/